Fire Extinguisher Classes Class D extinguishers, geared to flammable metals, are found in labs and industrial settings. K extinguishers are for large grease and oil fires, usually in commercial or institutional kitchens. An extinguisher labeled for Class B or Class K is suitable for grease or oil fires.Click to see full answer. Accordingly, does ABC fire extinguisher work on grease fires?Use a chemical fire extinguisher on the grease fire. Not all can be used on a grease fire, but the ABC dry chemical extinguisher is best.Beside above, which type of extinguisher should be used on cooking oil fires? Wet chemical extinguishers are suitable for use on Class F fires involving cooking oils and fats, such as lard, olive oil, sunflower oil, maize oil and butter. They are extremely effective, when used correctly. Just so, what type of fire extinguisher can be used on electrical fires? CARBON DIOXIDE (CO2) CO2 fire extinguishers were originally designed for use on flammable liquid fires and therefore have a class B fire rating. They are ideal for electrical fires, as CO2 is not a conductor and they do not leave behind any harmful residue.What kind of fires is ABC extinguisher not good for?Wood, paper and cloth. The B:C type fire extinguisher is designed to work on electrical fires and burning liquids.

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